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LOS ANGELES — The Academy of Motion Picture Arts and Sciences is encouraging celebrities to tweet during the Oscars.

The film organization has expanded its digital outreach for the 85th Academy Awards with a new feature that lets stars to snap photos of themselves backstage during Sunday's ceremony and instantly post them online.

What Twitter calls a "Magic Mirror" will take photo-booth-style pictures of participating stars in the green room and send them out on the academy's official Twitter account. Organizers expect multiple celebrity mash-ups.